Device in coring-tools for cutting cylinders.



W. PATROSIO.

DEVIGE IN CURING TOOLS FOR CUTTING CYLINDERS.

APPLICATION FILED DBO. 2a, 1913.

1, 1 1 5,01 0. Patented 0011.27, 1914.

2 SHEBTSBHEET l.

THE Norems PETERS C0 PHOIO L/THQ, WAMHNGIUN D C W. PATROSIO.

DEVICE IN CURING TOOLS FOR CUTTING CYLINDERS.

APPLICATION FILED D120. 23, 1913.

1,115,010. Patented Oct. 27, 1914.

N g KEITH-SHEET 2. v' Q N i ra n snares ATENT niac n.

WILLIAM PATROSIO, OFELIZABETH, NEW JERSEY, ASSIGNOR 0F ONE-HALF TO FRANKSCHIMPFLE, OFELIZABETI-I, NEW JERSEY.

DEVICE IN CQRING-TOOLS FOR CUT TING CYLINDERS.

Specification of Letters Patent.

Patented Oct. 2r, 1914.

Application filed December 23, 1913. Serial No. 808,480.

To all whom itmag concern:

Be it known thatI, WILLIAM PATROSIO, a citizen of the United States,residing at Elizabeth, in the county of Union and State of NewJerse haveinvented certain new and useful mprovements in- Devices in Goring-Toolsfor Cutting Cylinders; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art towhich it appertains to make and use thesame.

This invention relates to new and useful improvements in coring devicesfor cutting cylinders, and has for its object the provision of acylinder cutting device by means of which the core of a cylinder may beremoved with very little difficulty.

Another object of the invention, is the provision of a cylinder cutterby means of which the core within the cylinder may be automatically cutand the inner walls of the cylinder left relatively smooth.

Heretofore in the manufacturing of cylinders, much waste of material hasbeen experienced through the fact that there has been no cutterperfected by means of which the inner end of the cylinder may bedevention has for its principal object the saving of the materialforming the core and leaving the same'in an integral piece, whlch maybeeasily and quickly WlthCll'ttWllfIOfil its position within the cylinderwithout injuring the same in any way.

A still further objectof the invention is the provision of a novelcombination and arrangement of parts, by means of which the control ofthe cutting element for the inner end of the cylinder maybe actuated andcontrolled at the will of the operator.

With the above and other objects in view, the invention consists in thenovel combination and arrangement of parts which will be fully set forthin the following specification and accompanying drawings, in which,

Figure 1 is a view inelevation of the primary'cutter which is used inconnection with the invention and is used to make the first cut of thecylinder, Fig. 2 is a detail sectional View of a fragment ofthe primarycutter taken on the line 2-2 of Fig. 1, Fig. dis a view of the primarycutter showing thesame about to start the cut in the cylinder upon whichthe device is being used, Fig. 4; is a view in elevation of thesecondary cutter showing the core-removing-element in detail as wellasthe controlling element therefor, Fig. 5 is a longitudinal sectionalview of a cylinder and of the cutter illustrated in Fig. 4, taken online 5--5 thereof, and showing the cutter in the act of severing thecore from the end of the cylinder, Fig. (3 is a sectional view of afragment of a cylinder showing the same as it would appear with thecutter in place after the complete out has been made, and Fig. 7 is anend view of the cutter showing the cutting element in detail. is a crosssectional view of the invention.

Referring now to the drawings by characters of reference, the numeral 1designates generally a stock, from which the cylinder is to be cut. Theprimary cutter, which is indicated generally by the numeral 2,ispreferably formed of a seamless metal tube having at one end theenlargements 3, which are provided with the dove-tailed slot 4 in whichthe cutters 5 are removably secured. The enlargements 3 are preferablytwo in number and placed at diametrically opposite points from eachother as clearly illus- 1 tratedin Fig. 3, and it is who understood thatshould it be desirable at any time, the number of cutters in the end ofthe tube 2 maybe multiplied or decreased according to the work which isto be done. A plurality of enlarged portions 6 are also secured to thetube Qintermediate the cutters 3 as clearlyshown in Fig. 1. Theseenlargements are adapted to act as guides for the whole and prevent thecutters from coming out of alinement.

The stock 1 from which the cylinder is" to be cut, may be divided intothree separate elements for the sake of the description, and will bereferred to hereinafter bythe characters A, which indicates the roughstock before the cut is'made, B, which in- Fig. 8

dicates the cylinder after the cut has been made or partly made, and (l,which will indicate the core which is to be removed. l/Vhen it isdesired to cut a cylinder, the stock A is placed in a lathe or othersimilar machine, and the cutter 2 properly adjusted so that the cutterblade 5 will travel in a circular path and it will be apparent that whenpressure is applied against the ends of the stock and the end of thecutter, that the cutter blade will be forced into the stock and form thecircular cut 7, thus roughing the cylinder and leaving the core Ctherein. After this out has been made the secondary cutter, which willbe more fully hereinafter described, is placed in position and the corewill be easily and quickly severed from the rear end of the cylinder aswill be more fully hereinafter described.

The secondary cutter which is illustrated in Figs. 1 to 7 inclusive, ispreferably formed of the seamless tubing similar to the tubing 2 of theprimary cutter, which is provided with the longitudinal groove, whichwill appear as the description proceeds. At one end of the tube 8 ispreferably provided the collar 9 which is of substantially the samethickness as the width of the primary cut 7. This collar is cut away forsubstantially half of its distance around on the outer end as shown bythe numeral 10, and is so formed as to provide the portion 11 which isof thinner material than the collar, the use of which will be more fullyhereinafter described. The portion 11 is provided with a centrallylocated aperture through which the rivet 12 is adapted to extend, whichpivotally secures the hinged member 13 carrying the cutter 14 to thebody portion 8 of the secondary cutter.

Having described the primary cutter and the secondary cutter, it nowremains to fully set out the controlling means for the pivoted member 18which controlling means are slidable in the slot formed in the bodyportion 8, which was described in the previous paragraph. A suitablestrip of material 15 which is preferably of the same width as the widthof the slot formed in the body portion 8, is slidably mounted in saidslot and provided at one end with a pair of spaced ears 16 and 17, asclearly shown in Fig. 4. These ears are so constructed as to receive theextension 18 formed on the end link 19 of the chain which is indicatedgenerally by the numeral 20. The free end of which is pivotally securedas at 21 to the pivoted member 13 as will be clearly seen upon referringto Figs. 4, 5, and 6. A pair of short straps 22 and 23 are secured tothe body portion 8 and are adapted to bridge over the groove formedtherein to hold the strip 15 in the groove.

It will be clearly seen from the foregoing that after the primary cuthas been made, which was previously described, the secondary cutter isinserted in the circular cut thus formed until the cutter let engagesthe inner end thereof. Upon rotating the cutter and exerting pressureagainst the strip 15, it will be evident that the cutter 14 will swingon the pivot 12 and thereby make a hemispherical cut on the end of thecore and sever the same from the stock from which the cylinder is beingcut as clearly shown in Figs. 5 and 6. After this out has been made, itwill be evident that the member 13 may remain in the positionillustrated in Fig. 6, and upon exerting pull on the outer end of thebody portion 8, the same will be withdrawn from its position in thecylinder and at the same time remove the core 0, thus leaving a solidcore, hollow cylinder, and saving material and time.

lVhile in the foregoing I have shown and described the preferredembodiment of my invention, I wish it to be understood that I may makesuch changes inthe combination and arrangement of parts as will fallwithin the scope of the claims hereto appended.

Having thus described my invention, what I claim is:

1. In a device of the character described, a

tubular body, a cutter bearing elements pivotally secured to one end ofsaid tubular body and adapted to swing across the end in a transverseplane, and a'cutter carried by the pivoted element to cover the innerend of the core from the spot from which the same is being cut. 7

2. In a device of the character described, a tubular body portion, asemicircular member pivotally secured to the body portion atdiametrically 'opposite points and adapted to swing inwardly and extendtransversely thereof, a cutter carried by the semicircular memberintermediate its ends and adapted to sever a core from the stock fromwhich it is being cut and means to control the operation of the cutter.

3. In a device of the character described, a cylinder cutter comprisinga tubular body portion, a semicircular member pivotally secured tothecylindrical body portion at diametrically opposite points and adaptedto swing outwardly therefrom, a cutter secured to the semicircularmember intermediate its ends, a flat chain secured to the semicircularmember on the side opposite the cutter and means to control theoperation of the chain to force the cutter outwardly and into engagementwith the stock from which the cally opposite points, a cutter carried bytion and bringing the groove to hold the the semicircular memberintermediate its strip in place. 10 ends, a chain pivotally secured tothe semi- In testimony whereof I aflix my signature circular memberimmediately in the rear of in presence of two witnesses.

the cutter, a strip slidable in the groove and WILLIAM PATROSIO.connected to the chain whereby the operation Witnesses:

of the cutter may be control ed and a pair FRANK SOHIMPFLE,

of spaced straps secured to the body por- HUBERT SCHNUGHH Copies of thispatent may be obtained for five cents each, by addressing theCommissioner of Iatents,

Washington, D. G.

